Boiler Question Bank
Concept Questions
- Differentiate fire-tube and water-tube boilers.
- Why is a fusible plug fitted above the furnace crown?
- Explain swell and shrink in drum-level control.
- Why is deaeration required before feedwater enters a high-pressure boiler?
- Explain the causes and consequences of low-water condition.
Drawing Practice
- Cochran boiler
- Lancashire boiler
- Babcock and Wilcox boiler
- Natural-circulation water-tube boiler
- Boiler feedwater circuit
- Balanced-draft system
- Safety valve and water-level gauge
Viva Prompts
What will you check before lighting up? What actions will you take on flame failure? Why are two independent water-level indications required in many applications? How do you distinguish priming from foaming?